Copy-paste fix pattern
Open Studio Settings -> Account -> Sign in -> Activate Coding SuiteWhy it happens
The compiler could not confirm an active product license for the requested build.
How to fix it
Sign in from Studio Settings, activate the Coding Suite license, then run the build again. Offline builds use the last protected active license only when available.
If the IDE reports a line number, fix that line first, then scan the previous line for an unclosed string, bracket, or block.